arXiv:1510.02931math-ph
Four lectures on quasi-local mass
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Abstract
This note is based on a series of four lectures the author gave at University of Montpellier, September 28-30, 2015. He started with the notion of mass in general relativity, gave a brief review of some known constructions of quasi-local mass, and then discussed the new quasi-local energy and quasi-local mass which Shing-Tung Yau and the author introduced in 2009. At the end, the proof of the positivity of quasi-local energy was sketched and a stability theorem of critical points of quasi-local energy by Po-Ning Chen, Shing-Tung Yau, and the author was discussed.
> Combined with the other observation that our universe has uniform density at large scales s/has/had at the time of recombination It is largely an assumption of LCDM that we can treat the universe as practically homogeneous throughout its entire evolution but potentially not a…
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